CN206921561U - A kind of flame resistant cable - Google Patents
A kind of flame resistant cable Download PDFInfo
- Publication number
- CN206921561U CN206921561U CN201720655961.5U CN201720655961U CN206921561U CN 206921561 U CN206921561 U CN 206921561U CN 201720655961 U CN201720655961 U CN 201720655961U CN 206921561 U CN206921561 U CN 206921561U
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- cable
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Abstract
It is followed successively by interior flame retardant insulation, interior high-temperature-resistant layer, fire extinguishing layer, outer high-temperature-resistant layer and outer flame retardant insulation from inside to outside the utility model discloses a kind of flame resistant cable, including cable core, outside the cable core, extinguishing chemical is filled with the fire extinguishing layer.Interior flame retardant insulation, interior high-temperature-resistant layer, fire extinguishing layer, outer high-temperature-resistant layer and the outer fire retardant insulating coated successively outside the cable core of the cable, forms multiple protective to cable core, can effectively lift fire resisting, the resistance to elevated temperatures of cable, extend the fire resistance period of cable.
Description
Technical field
Field of cable technology is the utility model is related to, more specifically, it relates to a kind of flame resistant cable.
Background technology
In power system, cable plays a part of conveying electric energy, and the electric energy of cable transfer provides industrial production and people
Needed for life, so cable is played in today's society and its important effect.General trunk roads cable is to transmit and divide
With powerful cable, it can not interrupt, if it is immeasurable, the people of whole region that trunk roads cable cut, which impacts,
Basic living will be received and had a strong impact on, because the cable of trunk roads is also very high for performance requirement, wherein important
One is exactly fireproof high-temperature resistant ability.
The cable fire heat-resisting ability of trunk roads or poor at present, easily because the small kindling material of high temperature causes insulating barrier
Breakage, cause wire short-circuiting to cause bigger fire, cause trunk roads to be forced to have a power failure.Therefore the fireproof high-temperature resistant of cable is improved
It can be always the pursuit of cables manufacturing practitioner.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of flame resistant cable, the electricity
Cable has more preferable fireproof high-temperature resistant performance.
To achieve the above object, the utility model provides following technical scheme：
A kind of flame resistant cable, including cable core, interior flame retardant insulation, interior resistance to is followed successively by outside the cable core from inside to outside
Heat zone, fire extinguishing layer, outer high-temperature-resistant layer and outer flame retardant insulation, the fire extinguishing layer is interior to be filled with extinguishing chemical.
Using such scheme, the interior flame retardant insulation that is coated successively outside the cable core of the cable, interior high-temperature-resistant layer, fire extinguishing layer,
Outer high-temperature-resistant layer and outer fire retardant insulating, multiple protective is formed to cable core, can effectively lift fire resisting, the heat-resisting quantity of cable
Energy, extend the fire resistance period of cable.
Preferably：Flame-retardant rope is filled between the interior flame retardant insulation and interior high-temperature-resistant layer.
Using such scheme, the flame-retardant rope between interior flame retardant insulation and interior high-temperature-resistant layer can not only lift the resistance to of cable
Hot property, moreover it is possible to improve the tensile resistance of cable.
Preferably：The interior flame retardant insulation uses flame-retardant crosslinking polyethylene material with outer flame retardant insulation.
Using such scheme, temperature resistant grade is significantly enhanced by cross-linking modified PE, can make PE heat resisting temperature from
70 DEG C bring up to more than 90 DEG C, and crosslinked polyethylene is applied to the insulating barrier of power cable, can effectively improve electric power
The heat resistance of cable.When the cable is in more than 90 degree of hot environment, its outer flame retardant insulation not cracky, be not easy
Fire.
Preferably：The interior high-temperature-resistant layer is magnesium oxide layer.
Using such scheme, the high temperature that magnesium oxide layer can bear more than 2000 DEG C is non-fusible, and it can effectively stop fire
The sprawling of gesture, preferable protective effect is played to the internal structure of cable.
Preferably：The outer high-temperature-resistant layer is mica tape.
Using such scheme, the high temperature that mica tape can bear 1300 DEG C or so is non-fusible, and it also can be preferably in big fire
Protect inside cable.
Preferably：The flame-retardant rope is glass cord.
Preferably：The extinguishing chemical is halon extinguishing agent.
Compared with prior art, the utility model has the advantages that：The interior fire retardant insulating coated successively outside the cable core of the cable
Layer, interior high-temperature-resistant layer, fire extinguishing layer, outer high-temperature-resistant layer and outer fire retardant insulating, form multiple protective to cable core, can effectively be lifted
The fire resisting of cable, resistance to elevated temperatures, extend the fire resistance period of cable.
Brief description of the drawings
Fig. 1 is the structural representation of cable in embodiment one；
Fig. 2 is the structural representation of cable in embodiment two.
Description of reference numerals:1st, outer flame retardant insulation；2nd, outer high-temperature-resistant layer；3rd, fire extinguishing layer；4th, filled cavity；5th, Nei Naigao
Warm layer；6th, filler particles；7th, interior flame retardant insulation；8th, cable core；9th, glass cord.
Embodiment
Embodiment one：
A kind of flame resistant cable.
Reference picture 1, the cable include cable core 8, and cable core 8 is wrapped with interior flame retardant insulation 7, filled between cable core 8 and cable core 8
Filler particles 6 are filled with, the outside of interior flame retardant insulation 7 is coated with interior high-temperature-resistant layer 5.The interior outside of high-temperature-resistant layer 5 is coated with fire extinguishing
Layer 3, the outside of fire extinguishing layer 3 are coated with outer high-temperature-resistant layer 2, and the outer outside of high-temperature-resistant layer 2 is coated with outer flame retardant insulation 1.
In the present embodiment, outer flame retardant insulation 1 and interior flame retardant insulation 7 use flame-retardant crosslinking polyethylene material；It is outer resistance to
Heat zone 2 is mica tape；Fire extinguishing layer 3 is internally provided with filled cavity 4, and halon extinguishing agent is filled with filled cavity 4；Interior high temperature resistant
Layer 5 is magnesium oxide layer.
Because outer flame retardant insulation 1 is using flame-retardant crosslinking polyethylene material, significantly carried by cross-linking modified PE
High temperature resistant grade, can make PE heat resisting temperature bring up to more than 90 DEG C from 70 DEG C, crosslinked polyethylene is applied into electricity
The insulating barrier of power cable, the heat resistance of power cable can be effectively improved.The cable is in more than 90 degree of hot environment
When, its outer flame retardant insulation 1 not cracky, be not easy it is on fire.
If cable is on fire, after outer flame retardant insulation 1 is burned out, mica tape is exposed, and mica tape can bear 1300 DEG C of left sides
Right high temperature is non-fusible, and it preferably can be also protected inside cable in big fire.
If the intensity of a fire is excessive, the duration is too long, causes mica tape to be burned out, then layer 3 of putting out a fire is exposed, when fire extinguishing layer
After 3 are broken by burning, the halon extinguishing agent in filled cavity 4 is sprayed out, and certain containment is played to the intensity of a fire, puts out effect.
Even if fire extinguishing layer 3 does not keep out the intensity of a fire, after it burns, magnesium oxide layer is exposed, and magnesium oxide layer can be born
More than 2000 DEG C of high temperature is non-fusible, and it can effectively stop the sprawling of the intensity of a fire, and preferable guarantor is played to the internal structure of cable
Shield acts on.
Embodiment two：
Inserts in the present embodiment between interior flame retardant insulation 7 and interior high-temperature-resistant layer 5 is glass cord 9.Glass fibers
9 high temperature resistants of dimension rope, intensity are high, with the heat resistance that can not only lift cable in the cable, moreover it is possible to improve the stretch-proof of cable
Ability.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (7)
1. a kind of flame resistant cable, including cable core, it is characterized in that：Interior fire retardant insulating is followed successively by outside the cable core from inside to outside
Layer, interior high-temperature-resistant layer, fire extinguishing layer, outer high-temperature-resistant layer and outer flame retardant insulation, the fire extinguishing layer is interior to be filled with extinguishing chemical.
2. flame resistant cable according to claim 1, it is characterized in that：The interior flame retardant insulation and interior high-temperature-resistant layer it
Between be filled with flame-retardant rope.
3. flame resistant cable according to claim 1, it is characterized in that：The interior flame retardant insulation and outer flame retardant insulation
Use flame-retardant crosslinking polyethylene material.
4. flame resistant cable according to claim 1, it is characterized in that：The interior high-temperature-resistant layer is magnesium oxide layer.
5. flame resistant cable according to claim 1, it is characterized in that：The outer high-temperature-resistant layer is mica tape.
6. flame resistant cable according to claim 2, it is characterized in that：The flame-retardant rope is glass cord.
7. flame resistant cable according to claim 1, it is characterized in that：The extinguishing chemical is halon extinguishing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720655961.5U CN206921561U (en) | 2017-06-07 | 2017-06-07 | A kind of flame resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720655961.5U CN206921561U (en) | 2017-06-07 | 2017-06-07 | A kind of flame resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206921561U true CN206921561U (en) | 2018-01-23 |
Family
ID=61314985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720655961.5U Expired - Fee Related CN206921561U (en) | 2017-06-07 | 2017-06-07 | A kind of flame resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206921561U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871083A (en) * | 2021-10-12 | 2021-12-31 | 广东金阳光电缆实业有限公司 | Low-smoke halogen-free insulated cable |
-
2017
- 2017-06-07 CN CN201720655961.5U patent/CN206921561U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871083A (en) * | 2021-10-12 | 2021-12-31 | 广东金阳光电缆实业有限公司 | Low-smoke halogen-free insulated cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180123 Termination date: 20210607 |